Add new Content type for overriding headline of an article
Parse webTitle metadata for each item in a collection and use
XSS: don't render HTML strings
Have a clickable icon for editing
Add InputValidation for basic blacklisting of input from tool
Move away from webTitle to headline as its headline we override
Move to case class CollectionItem instead of tuple for carrying headline
Move from webTitle to headline
Use fields.headline, not webTitle
Clear blacklist in InputValidation
Remove InputValidation
Remove sanitize line from method for updaing meta data
Remove sealed keyword
removing tests that aren't run
Remove import
Merge branch 'master' into headline-override
Articles can now be switched to Elastic search api.

Lots of test data files, sorry
Merge branch 'master' of github.com:guardian/frontend into elastic-articles
adding ab test around initial show number
Use project name from Configuration within Identity main template